[ 3360.612221][T26322] gre: GRE over IPv4 demultiplexor driver
[ 3361.843788][T26345] ip_gre: GRE over IPv4 tunneling driver
[ 3399.287094][T26917] ip6_gre: GRE over IPv6 tunneling driver
[ 3416.654860][T27167] ping (27167) used greatest stack depth: 22160 bytes left
[ 3424.294861][T26395] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3428.901362][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3433.893361][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3438.437345][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3443.365410][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!